Automatic lubricator.



C. C. SILLS.

AUTOMATIC LUBRIGATOR.

APPLICATION FILED JULY 11, 1914 1 ,142,735. Patented June 8, 1915.

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AUTOMATIC L BRIcA ToR;

To all whom it may concern Be it known that I, CLYDE CECIL SILLs, acitizen of the United States, residing at Dardanelle, in the county ofYell and State of Arkansas, have invented certain new: and usefulImprovements in Automatic Lubricators; and I do hereby declare thefollowing to be a full, clear, and exact description of the invention,such as will enable others skilled in the art to which it appertains tomake and use the same.

This invention comprehends certain new and useful improvements inlubricators, and has for its primary object to provide a device of thischaracter especially adapted for lubricating cylinders and the like.

. Another object of the invention is to provide an automatic lubricatorof thischaracter which will be of such construction and operation thatthe feeding of the oil to the cylinder will be controlled by thepressure from the cylinder and a spring around the valve stem andconnected with a stationary portion of the lubricator. The invention hasfora further object to provide a device of this character which will beautomatic in its operation, of extremely simple construction and highlyeflicient in use,as well as strong and durable.

WVith'these and other objects in viewas tion proceeds, the inventionconsists in certain novel features of construction, combination andarrangement of parts as will be hereinafter more fully described andclaimed.

For acomplete understanding of my invention, reference is to be hadtothe following description and accompanying drawings, in which 7 r. v y

Figure 1 is a longitudinal section through the complete device and aportion of a cylinder towhich the automatic lubricator is" numerals, 1designates the oil cup or reservoir having a sectional feed pipe 2depending therefrom and secured in a coupling 3 within which a verticalpartition 4: is formed and connected by its opposite or upper andSpecification of Letters Patent. I

Patented June 8, 1915.

Application filed Ju1y1'7,1914. Serial no. 851,591. 1

lower edges to opposite sides of thecou pling 3 by the horizontalpartitions 5, it

being understood that the opposite side edges of the vertical partition4 are connected wlth the coupling 3, and the vertical partition 4 isprovided With a conical valve seat G'W ithi'n WhlCh ilS adaptedtobeseated the conical pressurepcontrolling valve 7 V mounted upon thevalve stem 8 threaded through one wall ofthe coupling '3 and having thehand "wheel 9 or the like'mounted upon'its outerface, by means of whichsaid stem 8 maybe readily rotated to move the valve 7 to proper position'with'respect to the valve seat 6.' i

It will beunderstood that the coupling 3 has connected therewith a pipeconnection 10 which is secured in the wall of the compression cylinderof an air pump or'thelike and having the piston 12 adapted toreciprocate therein. l

-' The feed pipe-2 .oil chamber 13. 2

formed intermediate-its ends by the lower and upper "horizontalpartitions 14: and 15 provided; respectively with the, valve open Thevalver7 is adapted for engagement with the valve seat. 6 and thecompression from the cylinder11 forces the valve '18 against the lower,face of the lower p'arti tion 1% andthereby closes the valve opening 16,it being understood that the valve 18 is mounted upon the slidable rod19. 4 This 7 Will prevent oil from passing out of the oil chamber 13.Assoon as the piston12 starts its return stroke, however, the pressureis 1 reduced and the valve 18 isxmovedflaway from the valve opening 16,by means of the expansion spring 20 to permit the lub ricating oilwithin theoil chamber 13 to pass into the coupling f3-and through thevalve opening 6-to the cylinder 11 and the piston 12 withinthe same. Theexpansion spring 20 is secured around the stem 21 of the valve 22, uponthe stem 19 and adapted to be ad- 21 of the valve 22 depending throughthe valve opening 17 in the xupper'partition 15 and being prevented fromrotating by means 'justed longitudinally ;of the; same, the, stem of theexpansion spring 20 which has one end secured to the lower end'of thestem 21, while its opposite endis secured to the under face of the upperpartition 15, as will be readily understood by referring to'the drawing.

The valve 22 stem 21 are adjusted 1011 gitudinally upon the stem 19 insuch manner that when the valve 7 is in open position, the valve 22 alsois in open position and vice versa, the spring 20 serving to close thevalve 22 by pressing the same with the rod 19 downwardly upon a decreaseof steam pressure from the cylinder 11. The valve 22 is locked againstaccidental movement on the rod 19 by the enlargement or jam nut 23formed on the lower extremity of the tube 21, which is extended throughthe oil cup or reservoir cover 25 at its upper end and has the annularflange 26 formed around the same for the purpose of rotating the tube24: to adjust the position of said tube 2% with respect to the rod 19and position said jam nut 23 against said valve 22, it being un derstoodthat the j am nut has threaded en gagement with said rod 19. It willalso be understood that the stem 19 has a hand wheel 27 or the likeformed on its upper free extremity above the flange 26 of the tube 24,whereby said stem 19 may be readily rotated in either direction toadjust the position of the valve 22 and valve stem 21 upon said stem 19.It will further be understood that the cover 25 has a depending annularflange 28 threaded upon the upper end of the oil cup or reservoir 1, andit will be evidentthat as the feed pipe 2 is formed in sections and thesections are connected near the center of the oil chamber 13, as shownat 29, the valve 22 andvalve stem 21, as well as the expansion spring 20may be readily secured in position or removed. Further, should any ofsuch parts become worn or broken, they may be readily re placed at smallcost.

While I have shown and described the preferred embodiment of myinvention, it will be understood that minor changes in the details ofconstruction, combination and arrangement of parts may be made withoutdeparting from the spirit and scope of the invention as claimed, orsacrificing any of the advantages thereof.

What is claimed is 1. A device of the class described comprising an oilreservoir, a feed pipe leading from said reservoir to a member to belubricated, a pair of transverse partitions positioned in said feedpipe, a stem reciprocally mounted through said oil reservoir and feedpipe, a tube around said stem, a valve on the lower end of said stem andadapted to be engaged Copies of this patent may be obtained for with thelower partition, a second valve adjustably mounted on said stem andadapted for engagement with the upper partition upon disengagement ofthe lower valve from the lower partition, and a jam nut carried by saidtube and engaged with said stem.

2. A device of the class described comprising the combination with acompression cylinder and an oil reservoir; of a feed pipe, said feedpipe having an oil chamber formed therein by a pair of spaced transversepartitions, said feed pipe being formed in sections connectedintermediate the ends of the oil chamber, a stem slidably and rotatablymounted in said feed pipe and oil reservoir, a tube around said stem, ajam nut carried by the lower end of said tube, said transversepartitions having valve openings formed therein, a pair of valvesmounted upon said stem, the lower valve being adapted to be forcedagainst the lower transverse partition to close the valve openingthereof, and means secured to the upper transverse partition and thevalve for seating said upper valve and forcing the lower valve away fromthe lower partition.

3. A device of the class described comprising an oil reservoir, acompression cylinder, a feed pipe ieadingfrom said oil reservoir, acover for said oil reservoir, a coupling, means for connecting thecoupling to the compression cylinder, said oil feed pipe being connectedwith said coupling, a pair of spaced partitions in said feed pipe, atube extended through the cover for said oil reservoir and dependinginto the feed pipe, a stem rotatably mounted in said tube, a pair ofvalves mounted upon said stem beneath the lower end of the tube andadapted for engagement with the partitions to control the passaage ofoil through said partitions, the lower valve being adapted to be seatedby the pressure from the compression cylinder, a valve mounted in thecoupling to cut off communication between the cylinder and the feedpipe, and a jam nut carried by the tube and engaged with the upper valvecarried by said stem.

In testimony whereof I aflix my signature in presence of two witnesses.

CLYDE G. SILLS.

Witnesses:

R. A. JoHNson, WM. WAYNE SILLs.

five cents each, by addressing the Gommissioner of Patents, Washington,D. G.

